class_docstr: Base class for all exceptions raised by this module.
      
code: def __str__(self):
      return str(self.value)
  
file_path: catboost/contrib/python/pexpect/py2/pexpect/exceptions.py
imports: import traceback
  import sys
label_desc: Use image node_id 2 for calling the ExceptionPexpect obj's underlying member method code with example usage: obj.__str__() and returns: str